Each investment adviser required to register under section 36b-6 or investment adviser agent, as defined in section 36b-3, except an investment adviser representative, as defined in Securities and Exchange Commission Rule 203A-3, 17 C.F.R. § 275.203A-3, shall provide to each customer or client, upon request, a schedule of any charges, fees or penalties imposed on a customer or client for the acquisition, transfer or holding of securities. Such schedule shall fully disclose any variance, advantage or economy of volume purchases to be realized by the customer or client.